Home / 8,109.64-11,192.10-4,922.69

Finding the Fourth Proportional to 8,109.64, 11,192.10 and 4,922.69

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Solution

The fourth proportional to 8,109.64, 11,192.10 and 4,922.69 is: 6,793.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,109.64 : 11,192.10 = 4,922.69 : x
  2. Step 2: Convert to fraction form
    8,109.64/11,192.10 = 4,922.69/x
  3. Step 3: Cross multiply
    8,109.64x = 11,192.10 × 4,922.69
  4. Step 4: Simplify right side
    8,109.64x = 55,095,182.79
  5. Step 5: Solve for x
    x = 55,095,182.79/8,109.64
  6. Step 6: Final answer
    x = 6,793.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.